CN209324675U - A kind of self priming centrifugal pump - Google Patents
A kind of self priming centrifugal pump Download PDFInfo
- Publication number
- CN209324675U CN209324675U CN201822029896.2U CN201822029896U CN209324675U CN 209324675 U CN209324675 U CN 209324675U CN 201822029896 U CN201822029896 U CN 201822029896U CN 209324675 U CN209324675 U CN 209324675U
- Authority
- CN
- China
- Prior art keywords
- water inlet
- chamber
- inlet line
- pump
- centrifugal pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of self priming centrifugal pumps, including centrifugal pump body, centrifugal pump body includes pump chamber and blade wheel chamber again, water inlet is equipped on the outside of pump chamber, water outlet is equipped in the top of pump chamber, water inlet line is equipped in pump chamber, water inlet line is connected to water inlet and blade wheel chamber, it is externally provided in water inlet line by the return line of pump chamber and water inlet line perforation, check valve is equipped in return line, the blade wheel chamber includes spiral case and rear seal-cover, impeller is equipped in spiral case, blade wheel chamber is connected to water outlet, check valve includes valve body and valve deck, reflux storehouse in valve body equipped with one end and valve deck cooperation, the other end in reflux storehouse is equipped with the return pipe penetrated through with water inlet line, and the opening of return pipe is towards impeller direction.When pumping normal work, the check valve of closing will not be opened and be affected so as to cause the performance of pump lower than A value because of the pressure in pump chamber the utility model.
Description
Technical field
The utility model relates to centrifugal pump field, especially a kind of self priming centrifugal pump.
Background technique
The working principle of self-priming centrifugal pump is the effect using turbine centrifugal power, and water pump is before work, the pump housing and water inlet pipe
Water must be filled and form vacuum state, when the impeller rotates rapidly, blade promotes water to rotate quickly, and the water being rotating is in centrifugal force
Under the action of fly to from impeller, after the water in pump is spilled over, the central part of impeller forms vacuum area, and the water of water original is big
It has been pressed onto water inlet pipe, has been recycled endlessly in this way, so that it may realize continuous pumpage by pipe network under the action of atmospheric pressure (or hydraulic pressure).
What is be arranged in existing self priming centrifugal pump is conventional check valve, and conventional check valve can go out in pump work
The now this problem in face, will appear in pump work just makes closed check valve in pump chamber when the pressure in pump chamber is greater than A(A
Pressure value) value when, check valve can be closed, once the pressure in pump chamber be lower than A value when, check valve can be opened, return pipe
In the open state, the performance of pump will receive influence.
Utility model content
A kind of self priming centrifugal pump is provided purpose of the utility model is to solve above-mentioned the deficiencies in the prior art, it should
Self priming centrifugal pump at work, will not be because of the pressure value in pump chamber after pressure of the check valve in pump chamber is greater than the closing of A value
Be opened lower than A value, only when pump shutdown or pump chamber in anhydrous Shi Caihui be opened again.
To achieve the goals above, a kind of self priming centrifugal pump designed by the utility model, including centrifugal pump body, institute
Stating centrifugal pump body includes pump chamber and blade wheel chamber, and water inlet is equipped on the outside of the pump chamber, and the top of the pump chamber is equipped with water outlet,
It is equipped with steam Disengagement zone below the water outlet, water inlet line is equipped in pump chamber, described water inlet line one end is connected to water inlet,
The other end is connected to blade wheel chamber, is externally provided with by the return line of pump chamber and water inlet line perforation, in return line in water inlet line
Equipped with check valve, the blade wheel chamber includes spiral case and rear seal-cover, is equipped with impeller in the spiral case, the blade wheel chamber is communicated with water outlet
Pipeline, the outlet pipeline are connected to steam Disengagement zone, are equipped with the motor connect with impeller shaft, the check valve on the outside of the blade wheel chamber
Including valve body and valve deck, in valve body be equipped with one end and valve deck cooperation reflux storehouse, it is described reflux storehouse the other end be equipped with into
The return pipe of waterpipe perforation, and the opening of the return pipe is towards impeller direction.
In order to facilitate the reset of check valve valve deck, one end is equipped in the reflux storehouse and is placed on valve deck, the other end is placed on
The spring of the outer wall of return pipe.
In order to which water inlet line and check valve are fixed in pump chamber, the spiral case side be equipped with fixed frame, it is described into
Waterpipe and check valve are each attached on fixed frame.
The leakproofness of return line when in order to guarantee closed check valve, the valve deck are equipped with sealing ring.
The Z-shaped structure of water inlet line.
A kind of self priming centrifugal pump that the utility model obtains, its technical effect is that when pumping normal work, due to reflux
For pipeline towards impeller direction, the valve deck of the check valve of closing will receive the power towards impeller direction, therefore close unidirectional
Valve will not be opened because of the pressure in pump chamber lower than A value, only just can be by again when anhydrous in pump shutdown or pump chamber
It opens, will not become smaller and influence the performance of pump because of pump cavity pressure.
Detailed description of the invention
Fig. 1 is a kind of the schematic diagram of the section structure of self priming centrifugal pump of embodiment 1；
Fig. 2 is a kind of schematic perspective view of self priming centrifugal pump of embodiment 1；
Fig. 3 is the schematic diagram of the section structure of 1 check valve of embodiment；
Fig. 4 is the attachment structure schematic diagram of 1 water inlet line of embodiment, check valve and spiral case；
Fig. 5 is the structural schematic diagram of 1 impeller of embodiment；
Fig. 6 is the structural schematic diagram of 1 spiral case of embodiment；
Fig. 7 is the structural schematic diagram of 1 rear seal-cover of embodiment；
Fig. 8 is the valve cover structure schematic diagram of 1 check valve of embodiment.
In figure: centrifugal pump body 1, pump chamber 3, blade wheel chamber 4, water inlet 5, water outlet 6, steam Disengagement zone 7, water inlet line 8,
Return line 9, spiral case 11, rear seal-cover 12, impeller 13, outlet pipeline 14, motor 15, valve body 16, valve deck 17, returns at check valve 10
Flow storehouse 18, return pipe 19, spring 20, fixed frame 21, sealing ring 22.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Embodiment 1:
As shown in Figure 1 and Figure 4, a kind of self priming centrifugal pump provided in this embodiment, including centrifugal pump body 1, it is described from
The heart pump pump housing 1 includes pump chamber 3 and blade wheel chamber 4, and water inlet 5 is equipped on the outside of the pump chamber 3, and the top of the pump chamber 3 is equipped with water outlet
Mouthfuls 6, steam Disengagement zone 7 is equipped with below the water outlet 6, water inlet line 8 is equipped in pump chamber 3, described 8 one end of water inlet line connects
Logical water inlet 5, the other end are connected to blade wheel chamber 4, and the return line for penetrating through pump chamber 3 and water inlet line 8 is externally provided in water inlet line 8
9, check valve 10 is equipped in return line 9, as shown in Fig. 5, Fig. 6 and Fig. 7, the blade wheel chamber 4 includes spiral case 11 and rear seal-cover
12, the spiral case 11 is interior to be equipped with impeller 13, and the blade wheel chamber 4 is communicated with outlet pipeline 14, and the outlet pipeline 14 is connected to steam
Disengagement zone 7, as shown in Fig. 2, the motor 15 connect with 13 axis of impeller is equipped on the outside of the blade wheel chamber 4, as shown in figure 3, described unidirectional
Valve 10 includes valve body 16 and valve deck 17, and the reflux storehouse 18 of one end and the cooperation of valve deck 17, the reflux storehouse 18 are equipped in valve body 16
The other end be equipped with the return pipe 19 that penetrates through with water inlet line 8, and the opening of the return pipe 19 is towards 13 direction of impeller.
It is equipped with one end in the reflux storehouse 18 to be placed on valve deck 17, the other end is placed on the spring of the outer wall of return pipe 19
20。
11 side of spiral case is equipped with fixed frame 21, and the water inlet line 8 and check valve 10 are each attached on fixed frame 21.
As shown in figure 8, the valve deck 17 is equipped with sealing ring 22.
The Z-shaped structure of the water inlet line 8.
In this example, when check valve 10 in the open state, the valve deck 17 far from 19 one end of return pipe with it is described
The inner wall of centrifugal pump body 1 offsets.
Concrete operating principle: pump needs first to fill water in pump chamber 3 before starting work, after water fills in pump chamber 3, connects
Logical power initiation pump, due to 13 turning effort of impeller, air and water in intake line are sufficiently mixed, and pass through 14 quilt of outlet pipeline
It is discharged to steam Disengagement zone 7, the water of the gas evolution on 7 top of steam Disengagement zone, lower part is returned by the return pipe 19 of return line 9
Impeller 13 is completed certainly with the surplus air mixing in intake line until the gas in pump and suction line is all discharged again
It inhales, and normal pumping.When pumping normal pumping, the pressure in pump chamber 3 is greater than the pressure of spring 20, and check valve 10 can be by return pipe
19 close, existing self-priming centrifugal pump, the pressure for just closing check valve 10 in pump chamber 3 when the pressure in pump chamber 3 is greater than A(A
Force value) value when, check valve 10 can be closed, once the pressure in pump chamber 3 be lower than A value when, check valve 10 can be opened, and return at this time
Flow tube 19 is in the open state, and the performance of pump will receive influence, and in the present invention, since the opening of return pipe 19 is court
To 13 direction of impeller, when pumping normal work, the valve deck 17 of the check valve 10 of closing will receive one towards 13 direction of impeller
Power, therefore close check valve 10 will not because the pressure in pump chamber 3 lower than A value and be opened, return pipe 19 be in close
State, the performance that not will lead to pump are affected.
Claims (5)
1. a kind of self priming centrifugal pump, including centrifugal pump body (1), the centrifugal pump body (1) includes pump chamber (3) and blade wheel chamber
(4), water inlet (5) are equipped on the outside of the pump chamber (3), the top of the pump chamber (3) is equipped with water outlet (6), the water outlet (6)
Lower section is equipped with steam Disengagement zone (7), is equipped with water inlet line (8) in pump chamber (3), water inlet line (8) one end connection water inlet
Mouth (5), the other end are connected to blade wheel chamber (4), are externally provided in water inlet line (8) by the reflux of pump chamber (3) and water inlet line (8) perforation
Pipeline (9) is equipped with check valve (10) in the return line (9), and the blade wheel chamber (4) includes spiral case (11) and rear seal-cover (12),
Impeller (13) are equipped in the spiral case (11), the blade wheel chamber (4) is communicated with outlet pipeline (14), and the outlet pipeline (14) is even
Water flowing vapour Disengagement zone (7), blade wheel chamber (4) outside are equipped with the motor (15) connect with impeller (13) axis, it is characterised in that: described
Check valve (10) includes valve body (16) and valve deck (17), the reflux storehouse in valve body (16) equipped with one end and valve deck (17) cooperation
(18), the other end of reflux storehouse (18) is equipped with the return pipe (19) penetrated through with water inlet line (8), and the return pipe (19)
Opening towards impeller (13) direction.
2. a kind of self priming centrifugal pump according to claim 1, it is characterised in that: be equipped with one in the reflux storehouse (18)
For end cap on valve deck (17), the other end is placed on the spring (20) of return pipe (19) outer wall.
3. a kind of self priming centrifugal pump according to claim 1 or 2, it is characterised in that: spiral case (11) side is equipped with
Fixed frame (21), the water inlet line (8) and check valve (10) are each attached on fixed frame (21).
4. a kind of self priming centrifugal pump according to claim 1 or 2, it is characterised in that: the valve deck (17) is equipped with close
Seal (22).
5. a kind of self priming centrifugal pump according to claim 1 or 2, it is characterised in that: the water inlet line (8) is Z-shaped
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822029896.2U CN209324675U (en) | 2018-12-05 | 2018-12-05 | A kind of self priming centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822029896.2U CN209324675U (en) | 2018-12-05 | 2018-12-05 | A kind of self priming centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209324675U true CN209324675U (en) | 2019-08-30 |
Family
ID=67712732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822029896.2U Active CN209324675U (en) | 2018-12-05 | 2018-12-05 | A kind of self priming centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209324675U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111664097A (en) * | 2020-07-06 | 2020-09-15 | 江苏大学镇江流体工程装备技术研究院 | Self-priming device of centrifugal pump |
| CN113606151A (en) * | 2021-07-23 | 2021-11-05 | 浙江派尼尔科技股份有限公司 | Automatic exhaust water pump system |
| CN114718882A (en) * | 2022-04-19 | 2022-07-08 | 宁波君禾智能科技有限公司 | DC centrifugal garden pump |
| WO2024087343A1 (en) * | 2022-10-24 | 2024-05-02 | 利欧集团浙江泵业有限公司 | Water pump structure capable of rapid suction |
-
2018
- 2018-12-05 CN CN201822029896.2U patent/CN209324675U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111664097A (en) * | 2020-07-06 | 2020-09-15 | 江苏大学镇江流体工程装备技术研究院 | Self-priming device of centrifugal pump |
| CN113606151A (en) * | 2021-07-23 | 2021-11-05 | 浙江派尼尔科技股份有限公司 | Automatic exhaust water pump system |
| CN113606151B (en) * | 2021-07-23 | 2023-05-26 | 浙江派尼尔科技股份有限公司 | Automatic exhaust water pump system |
| CN114718882A (en) * | 2022-04-19 | 2022-07-08 | 宁波君禾智能科技有限公司 | DC centrifugal garden pump |
| WO2024087343A1 (en) * | 2022-10-24 | 2024-05-02 | 利欧集团浙江泵业有限公司 | Water pump structure capable of rapid suction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209324675U (en) | A kind of self priming centrifugal pump | |
| US2627817A (en) | Self-priming centrifugal pump | |
| CN109578288A (en) | A kind of gas-liquid mixed type self priming centrifugal pump | |
| CN103939660B (en) | The floating ball self-sucking valve of a kind of band lever construction and method for designing thereof | |
| CN209067490U (en) | High-efficiency energy-saving horizontal self-balanced multiple-stage centrifugal pump | |
| CN105952612B (en) | A kind of pump self-priming apparatus and method | |
| CN206268088U (en) | A kind of high-temperature water self priming pump | |
| CN201650756U (en) | Centrifugal water pump with automatic water drawing device | |
| CN201241840Y (en) | High priming stroke self priming pump | |
| CN107806418A (en) | Marine vertical internal-mixing self priming pump | |
| CN208203659U (en) | A kind of pump housing of water pump | |
| CN215927792U (en) | Combined type self-priming centrifugal water pump | |
| CN111207084A (en) | Self-priming centrifugal pump | |
| CN211778175U (en) | Self-priming pump impeller import sealing device | |
| CN205654922U (en) | Check valve | |
| CN211059022U (en) | Self-suction reinforced pump for drainage and waterlogging drainage | |
| CN2786322Y (en) | High-efficiency non-reflux submersible pump with stripping function | |
| CN110397600A (en) | Self priming centrifugal pump | |
| CN209053825U (en) | A kind of quick pumping system | |
| CN208900365U (en) | A kind of horizontal linked self-priming pump group with sealing device | |
| CN207906164U (en) | A kind of denoising device of self-priming immersible pump | |
| CN205559294U (en) | There is not sealed energy -efficient quick vertical self priming pump | |
| CN216894932U (en) | Self-priming pump with prevent siphon structure | |
| CN206439230U (en) | A kind of convenient maintenance and can be to the multipurpose pump of inlet pipeline automatic water filling | |
| CN214660896U (en) | Vertical centrifugal pump suitable for aviation kerosene transportation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo JUNHE Intelligent Technology Co.,Ltd. Assignor: JUNHE PUMPS HOLDING Co.,Ltd. Contract record no.: X2021330000099 Denomination of utility model: A self-priming centrifugal pump Granted publication date: 20190830 License type: Common License Record date: 20210828 |
|
| EE01 | Entry into force of recordation of patent licensing contract |